DESCRIPTION
Mini Base Board (A) Designed For Raspberry Pi Compute Module 4Mini Base Board For Compute Module 4

Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End Products

Powerful functions in a credit card sized body

SpecificationsCM4 SOCKETsuitable for all variants of Compute Module 4NETWORKINGGigabit Ethernet RJ45 connectorM.2 M KEY, supports communication modules or NVME SSDCONNECTORRaspberry Pi 40PIN GPIO headerUSBUSB 2.0 Type A × 2, USB 2.0 via FFC connector × 2DISPLAYMIPI DSI display port (15pin 1.0mm FPC connector)CAMERAMIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector)VIDEOHDMI port × 2 (including one port via FFC connector), supports 4K 30fps outputRTCN/ASTORAGEMicroSD card socket for Compute Module 4 Lite (without eMMC) variantsFAN HEADERno fan control, 5VPOWER INPUT5VDIMENSIONS85 × 56mmWhat's The DifferencesCM4 BASE BOARDINTERFACE COUNT AND SPECIFICATIONSPOEGIGABIT
ETH40PIN
HEADERPOWER
INPUTFEATURES
NANO A√2.0×1×15VCM4 sized
NANO B×1√2.0×1×1×1×15VCM4 sized
NANO C√2.0×1×1×1×15VOnboard Camera
MINI BASE A×1√M.2 M2.0×4×1×2×25V5Vmini size
MINI BASE B×1√M.2 M2.0×4×1×2×2√5V5Vmini size
MINI BASE C×1√M.2 M2.0×2×1×2√5V5VDedicated 40PIN LCD Connector
TOUCH SCREEN×1M.2 M2.0×4×1×15VIPS screen
MINI DUAL GIGABIT×2√2.0×15V SH1.05Vdual ETH
BINOCULAR CAMERA×1√M.2 M2.0×4×25Vdual 8MP
cameras
4CH RS485×12.0×2×1×2×15V7-36Vdual ETH
WIFI6 DUAL ETH×1√M.2 E2.0×3×1×2×2×15/12V7-36VWIFI6 dual ETH
DUAL GIGABIT style="box-sizing: border-box;">IOT DUAL GIGABIT ETH×2√3.0×2×1×2×2√5/12V5V5G/4G support
IOT support
RS232
RS485
ADC
POE BASE style="box-sizing: border-box;">RS485
POE UPS BASE√×1√M.2 M2.0×4×1×2×2√5/12V7-36VUPS
POE style="box-sizing: border-box;">RASPBERRY PI style="box-sizing: border-box;">WIRELESS BASE×1M.2 B /
7-36V5G/4G support
RS485
CAN
rail-mount
UPS WIRELESS BASE×1M.2 B2.0×3×1×1√5/12V5V or
7-36VWith UPS
5G/4G support
RS485
CAN
rail-mount
NAS MINI COMPUTER×2√M.2 M×2/
5″ TOUCH SCREEN②×1√M.2 M2.0×4×1×2√5/12V5V
7″ ALL-IN-ONE×1M.2 M2.0×4used×1used√5/12V
used7-36Vtouch screen
camera
speaker
13.3″ ALL-IN-ONE×12.0×212VHD touch screen
13.3″ MAGIC MIRROR×12.0×212VHD screen,
Speech AssistantNOTE① USB 3.0 is equivalent to USB 3.2 Gen1
② There's PoE header only on the Raspberry Pi official IO board without PoE circuit, that means additional PoE module is required for the official IO board to enable PoE feature.
Unless otherwise specified, the PoE feature here stands for integrating 802.3af-compliant PoE circuit (5V/2.5A).Connecting With Compute Module 4

Standard CM4 Socket And Color-Coded Raspberry Pi 40PIN GPIO Header
Suitable For Compute Module 4 Lite/EMMC Series Module

Compact, Yet Complete

Onboard Multiple Connectors Including:
CSI/DSI/FAN/HDMI/USB/RJ45 Gigabit Ethernet/Micro SD Card Slot/M.2 Slot

What's On Board

1. CM4 socket
   suitable for all variants of Compute Module 4
2. Power input/Programming
   5V/2.5A power supply, or used for eMMC burning
3. DISP
   MIPI DSI display port
4. FAN
   for connecting cooling fan, allows speed adjustment and measurement
5. CAM
   2x MIPI CSI camera ports
6. HDMI0 connector
   HDMI0 port, supports 4K 30fps output
7. USB 2.0 ports
   2x USB 2.0 ports, for connecting sorts of USB devices
8. Gigabit Ethernet connector
   Gigabit Ethernet RJ45 connector, with 10 / 100 / 1000M network support
9. M.2 indicator
   indicating the operating status of M.2 interface
10. ACT indicator
    indicating the operating status of Raspberry Pi
11. PWR indicator
    indicating the status of Raspberry Pi power supply
12. BOOT selection
    ON: CM4 would be booted from USB-C interface
    OFF: CM4 would be booted from eMMC or Micro SD card

13. 40PIN GPIO header
14. Micro SD card slot
    for connecting a Micro SD card with pre-burnt image (Lite variant ONLY)
15. HDMI1 FFC connector
    HDMI1 port, supports 4K 30fps output
16. USB 2.0 FFC connector
    can be connected through an adapter
17. FE1.1S
    USB HUB chip, expanding one USB port to 4x ports
18. M.2 slot
    supports sorts of NVME SSD, or communication modules with PCIE M.2 KEY-M interface

Outline DimensionsApplication Example

Working With Displays And Cameras

Working With An Additional SSD

for reference only, CM4, displays, cameras, and SSD are NOT included.Resources & Services
PACKAGE CONTENT

Weight:0.045 kg

1. CM4-IO-BASE-A x1
2. SSD mounting screw x1

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